CN107829085A - A kind of aluminium material roll-coating production line - Google Patents
A kind of aluminium material roll-coating production line Download PDFInfo
- Publication number
- CN107829085A CN107829085A CN201710981556.7A CN201710981556A CN107829085A CN 107829085 A CN107829085 A CN 107829085A CN 201710981556 A CN201710981556 A CN 201710981556A CN 107829085 A CN107829085 A CN 107829085A
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- Prior art keywords
- aluminium
- coating
- drying
- production line
- material roll
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Classifications
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- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C22/00—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals
- C23C22/73—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals characterised by the process
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C22/00—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals
- C23C22/05—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions
- C23C22/06—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions using aqueous acidic solutions with pH less than 6
- C23C22/24—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions using aqueous acidic solutions with pH less than 6 containing hexavalent chromium compounds
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C22/00—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals
- C23C22/78—Pretreatment of the material to be coated
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C22/00—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals
- C23C22/82—After-treatment
Abstract
The invention discloses a kind of aluminium material roll-coating production line, including step：A, upper volume；B, alkali process；C, acid treatment；D, wash；E, it is passivated；F, heat drying；G, coating；H, three-level is dried；I, wind.The aluminium material roll-coating production line of the present invention realize it is continuous do not rest production, at the uniform velocity complete whole production process, raising production efficiency；Using scientific and efficient cleaning way, aluminium material surface cleannes are improved, ensure coating quality；By the way of three-level drying, make curing of coatings uniform, not bubble.
Description
Technical field
The present invention relates to the production and processing field of aluminium, particularly a kind of aluminium material roll-coating production line.
Background technology
In the production process of traditional pop can cover, mostly be using piece apply form, by aluminium volume through over cleaning, chromaking,
Air-dry, section, the aluminium after section carries out application, drying and cooling again, and finished product is sheet.For production procedure, it can not do
To continuous production, efficiency is influenceed.
Application No. CN201110169727.9 announce automatic aluminium material roll-coating production line, its production process be a,
Upper volume；B, clean；C, chromaking；D, coating；E, toast；F, cool down；G, overlay film；H, last volume.It is complete that this application realizes aluminium production
Automation, cleaning, chromaking, coating and the baking of aluminium are realized using streamline.For being used in the cleaning of aluminium in this application
Whether simple cleaning and rinsing, aluminium clean up the effect for having influence on coating process, do not wash clean clearly, aluminium material surface is attached
There is impurity, cause the absorption affinity of coating not up to standard, coating is easy to come off.Coating is carried out at direct elevated cure in this application
Reason, coating heating is too fast, is not given to coating time enough levelling, coating is uneven, bubble phenomenon easily occurs；Coating temperature
In the case that degree heating is slow, coating flow is too fast, easily forms particle at aluminium edge, and it is uneven to again result in coating appearance
Phenomenon.
The content of the invention
The present invention is directed to above-mentioned problem, there is provided a kind of aluminium material roll-coating production line, is improving production efficiency
While, solve aluminium and do not wash clean clearly, the problem of aluminium coating easily comes off, coating is uneven, curing degree is insufficient.
The present invention intends being achieved using following technical scheme:
A kind of aluminium material roll-coating production line, comprises the following steps：
A, upper volume, aluminium volume is put into conveying device and carries out uncoiling, the aluminium after uncoiling is at the uniform velocity to complete whole technique mistake
Journey；
B, alkali process, the aluminium after uncoiling are entered in lye tank (vat) and soaked under the conveying of conveying device, the aluminium after immersion
Material sprays by alkali lye again, removes surface impurity, then remove alkali lye with clear water shower；
C, acid treatment, the aluminium after alkali process enter immersion treatment in acid storage；
D, wash, the aluminium after acid treatment pass through clear water shower, and the aluminium after clear water shower is in neutral, the aluminium after shower
Again by air-drying processing；
E, it is passivated, the aluminium after washing enters progress chromaking processing in deactivation slot；
F, heat drying, the aluminium after passivation, which enters in oven, carries out heating, drying, the surface temperature of aluminium is reached 130-
150 degrees Celsius；
G, coating, surface temperature control is below 50 degrees Celsius before plater is entered for the aluminium of drying, plater
Up-protective layer is applied on the surface of aluminium；
H, three-level is dried, and the aluminium after coating, which sequentially enters three drying bakers, is dried, and the temperature of the first drying baker is low
In the second drying baker temperature and the 3rd drying baker；
I, wind, the aluminium material surface temperature control after three-level drying is wound again below 40 degrees Celsius.
As a further improvement, the aluminium after uncoiling is rolled up in the presence of conveying device, complete with 28-32m/min speed
Into whole production process.
As a further improvement, the aluminium after being soaked in the step b is by alkali lye spray process twice.
As a further improvement, the washing in the step d is clear water shower three times, aluminium after first time clear water shower
PH value is controlled in the range of 5-6, and aluminium PH controls are in the range of 6-7 after second of shower, and aluminium is in neutrality after third time shower,
Aluminium carries out air-drying processing again after clear water shower three times.
As a further improvement, in the step g, coating material is epoxy resin, and the thickness of dry film is 3-4 μm.
As a further improvement, in the step h, the temperature control of the first drying baker is at 210-220 degrees Celsius, second
At 250-260 degrees Celsius, the 3rd drying baker controls at 250-260 degrees Celsius the temperature control of drying baker.
The invention has the advantages that：
(1), can realize it is continuous do not rest production, raising production efficiency；
(2), the cleaning of aluminium volume is more thorough, the defects of no informal voucher, bright spot, follow-up aluminium is rolled up protective layer coating and is not easy to take off
Fall；
(3), dried using three-level, coating had time enough levelling, stabilized and solidified, aluminium volume protective layer has more preferable
Physical property and chemical property.
Embodiment
Hereinafter, the present invention is described in further detail.
In the roller coat production process of aluminium volume, aluminium is particularly significant when cleaning, and follow-up coating can be influenceed clearly by not washing clean
Technique, protective layer is caused easily to come off；, easily there is the situation of informal voucher and bright spot, final product in overclean, aluminium whiting
Do not meet product to ask, belong to defect ware.The present invention aluminium winding up roller apply production process in be it is continuous, aluminium volume after uncoiling with
28-30m/min fair speed operation, cleaning ratio are relatively inaccessible to require.
The present invention is cleaned using following processing step to aluminium：
A, upper volume, aluminium volume is put into conveying device and carries out uncoiling, the aluminium after uncoiling is even with 28-32m/min speed
Speed completes whole technical process, and reel change is completed by way of storing.
B, alkali process, alkali process are that the impurity and greasy dirt that are remained on aluminium volume are handled, and impurity and greasy dirt are attached to aluminium
Material surface, adhesion are stronger.Aluminium first passes through the immersion of lye tank (vat) in the present invention, releases aluminium material surface impurity and greasy dirt,
It is aided with the mode of alkali lye spray again, rinses out the impurity and greasy dirt of attachment, finally with clear water shower aluminium, eliminate most alkali
Liquid, PH are controlled in the range of 7-8.
C, acid treatment, the aluminium after alkali process enter immersion treatment in acid storage, the alkali lye of the acid solution and residual of part
Neutralization reaction, most acid solution are used for the surface for cleaning aluminium.Alkali lye has stronger adhesive force, and difficult for drop-off, acid solution is more easy to
In washing, conveniently cleaned after being neutralized using acid solution.
D, wash, the aluminium after acid treatment pass through clear water shower, and the aluminium after clear water shower is in neutral, the aluminium after shower
Again by air-drying processing；
Preferably, the aluminium after the immersion in described step b is by alkali lye spray process twice, impurity and oil removal
It is more thorough.
Preferably, aluminium after acid treatment is by clear water shower three times, after first time clear water shower the control of aluminium pH value exist
In the range of 5-6, aluminium PH controls are in the range of 6-7 after second of shower, and aluminium rushes in neutrality, three times clear water after third time shower
Aluminium carries out air-drying processing again after leaching.Speed of the aluminium in 28-30m/min is advanced, and the effect ratio of washing is relatively inaccessible to, using three
Secondary shower mode, by each cleaning performance of shower water rate control, aluminium is set to progressively reach required water washing effect.Cleaning
Later aluminium will also be carried out air-drying processing, and making aluminium material surface, the form that can be purged by blower fan is realized without washmarking.
The cleaning performance of aluminium is effectively improved in the present invention, is laid a solid foundation for follow-up coating process.Acid solution
Groove and lye tank (vat) install overfall by the way of automatic overflow, and due to the accumulation of foul, tank liquid level can gradually rise, and rise
To certain altitude will overflow, while by automatic adding device into groove addition acid solution or alkali lye automatically, it is ensured that pH value
Within claimed range, and periodically detected, ensure the reliability of equipment.Acid storage and lye tank (vat) can also set PH to measure
Instrument, acid adding or alkali are carried out by system controlling pump, ensure the pH value of tank liquor.
Processing is typically passivated to aluminium before coating：
E, it is passivated, the aluminium after washing enters progress chromaking processing in deactivation slot.Environment-friendly type aluminium alloy passivating technique, it is
A ripe technique of trivalent chromium Technical comparing in the market, contribute to the absorption of aluminium surface covering paint.Passivating solution is one
The water-reducible dissolving of kind, it is painted on aluminium material surface and typically can be carried out with the actual plate temperature drying no more than 150 degree next
The coating process of level.
Temperature control is very crucial in the protective layer coating process of aluminium, and paint solidification is bad, the chemical property of protective layer
Requirement is not just reached with physical property.Temperature is high, and coating can fall paint, and temperature is low, and adhesive force is not up to standard, and solidification temperature is bad, aluminium
Volume yield behavior is not up to standard, rushing lid shaping and can go wrong in subsequent technique.The present invention is realized using following processing step：
F, heat is dried, and in coating procedure, aluminium material surface must be parched thoroughly, and the aluminium after passivation will carry out drying and processing,
Specifically aluminium enters in oven under conveying device effect carries out heating, drying, the surface temperature of aluminium is reached 130-150
Degree Celsius.
G, coating, to ensure the effect of coating, the aluminium of drying must control into surface temperature before plater
Less than 50 degrees Celsius, then up-protective layer is applied on the surface of aluminium by plater, coating apparatus can use three-roll coating machine.Temperature
When spending high, coating is unstable, easily comes off, into coating before temperature control can be existed by way of blower fan quenching
Less than 50 degrees Celsius.
H, three-level is dried, and the aluminium after coating, which sequentially enters three drying bakers, is dried, and the first drying baker can not be set
It is too high, allow protective layer to have time enough levelling uniform；The temperature setting of second drying baker is higher than the first oven temperature, and second dries
Dry case is the main curing area of protective layer, protective layer is played uniform curing effect；3rd drying baker temperature can control and the
Two drying baker temperature are consistent, and the 3rd drying baker is stable region, make protective layer solidification more thorough.
I, wind, aluminium material surface temperature can not be too high during winding, otherwise can cause coating come off and adhesion.Three-level is dried
Aluminium material surface temperature control afterwards is wound again below 40 degrees Celsius.The chilling temperature control of aluminium can pass through conveyer belt
Length control, the transmission strip length of cooling procedure is arranged to 30 meters, in the case where speed is 28-32m/min, cools down duration
Up to more than 45 seconds.
Preferably, the coating material in step g is epoxy resin, and the thickness after dry film is 3-4 μm.
Preferably, in step h, the temperature control of the first drying baker is at 210-220 degrees Celsius, the temperature control of the second drying baker
At 250-260 degrees Celsius, the 3rd drying baker controls at 250-260 degrees Celsius system.
Aluminium coating of the present invention passes through three-level drying and processing, strictly controls temperature in each step, improves aluminium coating
Solidification effect, coating uniform, do not fall paint, ensure that the physical property of aluminium and chemical property are up to standard.
The foregoing is only a preferred embodiment of the present invention, but protection scope of the present invention be not limited thereto,
All any modification, equivalent and improvement made within the spirit and principles of the invention etc., it should be included in the present invention's
Within protection domain.
Claims (6)
1. a kind of aluminium material roll-coating production line, it is characterised in that comprise the following steps：
A, upper volume, aluminium volume is put into conveying device and carries out uncoiling, the aluminium after uncoiling is at the uniform velocity to complete whole technical process；
B, alkali process, the aluminium after uncoiling are entered in lye tank (vat) and soaked under the conveying of conveying device, and the aluminium after immersion is again
Sprayed by alkali lye, remove surface impurity, then alkali lye is removed with clear water shower；
C, acid treatment, the aluminium after alkali process enter immersion treatment in acid storage；
D, wash, the aluminium after acid treatment pass through clear water shower, and in neutral, the aluminium after shower passes through the aluminium after clear water shower again
Cross and air-dry processing；
E, it is passivated, the aluminium after washing enters progress chromaking processing in deactivation slot；
F, heat drying, the aluminium after passivation, which enters in oven, carries out heating, drying, the surface temperature of aluminium is reached 130-150 and takes the photograph
Family name's degree；
G, coating, surface temperature control is below 50 degrees Celsius before plater is entered for the aluminium of drying, and plater is in aluminium
The surface of material applies up-protective layer；
H, three-level is dried, and the aluminium after coating, which sequentially enters three drying bakers, is dried, and the temperature of the first drying baker is less than the
Two drying baker temperature and the 3rd drying baker；
I, wind, the aluminium material surface temperature control after three-level drying is wound again below 40 degrees Celsius.
2. a kind of aluminium material roll-coating production line according to claim 1, it is characterised in that the aluminium volume after uncoiling is conveying
In the presence of device, whole production process is completed with 28-32m/min speed.
3. a kind of aluminium material roll-coating production line according to claim 1, it is characterised in that after being soaked in the step b
Aluminium by alkali lye spray process twice.
A kind of 4. aluminium material roll-coating production line according to claim 1, it is characterised in that the washing in the step d
For clear water shower three times, the control of aluminium pH value is in the range of 5-6 after first time clear water shower, and aluminium PH is controlled after second of shower
In the range of 6-7, aluminium is in neutrality after third time shower, and aluminium carries out air-drying processing again after clear water shower three times.
A kind of 5. aluminium material roll-coating production line according to claim 1, it is characterised in that in the step g, coating material
Expect for epoxy resin, the thickness of dry film is 3-4 μm.
6. a kind of aluminium material roll-coating production line according to claim 1, it is characterised in that in the step h, first dries
The temperature control of dry case is at 210-220 degrees Celsius, and the temperature control of the second drying baker is at 250-260 degrees Celsius, the 3rd drying baker
Control is at 250-260 degrees Celsius.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710981556.7A CN107829085A (en) | 2017-10-20 | 2017-10-20 | A kind of aluminium material roll-coating production line |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710981556.7A CN107829085A (en) | 2017-10-20 | 2017-10-20 | A kind of aluminium material roll-coating production line |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107829085A true CN107829085A (en) | 2018-03-23 |
Family
ID=61648459
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710981556.7A Pending CN107829085A (en) | 2017-10-20 | 2017-10-20 | A kind of aluminium material roll-coating production line |
Country Status (1)
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109055953A (en) * | 2018-09-17 | 2018-12-21 | 西南铝业（集团）有限责任公司 | A kind of surface treatment method of coating aluminium coiled material and the preparation method of coating aluminium coiled material |
| CN110280616A (en) * | 2019-04-18 | 2019-09-27 | 嘉兴亿豪新材料有限公司 | A kind of aluminium volume treatment process |
| CN115846174A (en) * | 2022-11-30 | 2023-03-28 | 广东合拓新材料科技有限公司 | Preparation process of high-strength multilayer composite aluminum veneer |
| CN116174275A (en) * | 2023-03-10 | 2023-05-30 | 广西博思格科技发展有限公司 | Primer coating treatment process for color aluminum coil production |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102266840A (en) * | 2011-06-22 | 2011-12-07 | 常州市丽岛金属材料制造有限公司 | Automatic aluminium material roll-coating production line |
| CN103446895A (en) * | 2013-08-19 | 2013-12-18 | 武汉利英唯尔科学技术有限公司 | Curtain coating micro dip coating continuous production equipment and method of ultrathin membrane polymer complex film |
-
2017
- 2017-10-20 CN CN201710981556.7A patent/CN107829085A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102266840A (en) * | 2011-06-22 | 2011-12-07 | 常州市丽岛金属材料制造有限公司 | Automatic aluminium material roll-coating production line |
| CN103446895A (en) * | 2013-08-19 | 2013-12-18 | 武汉利英唯尔科学技术有限公司 | Curtain coating micro dip coating continuous production equipment and method of ultrathin membrane polymer complex film |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109055953A (en) * | 2018-09-17 | 2018-12-21 | 西南铝业（集团）有限责任公司 | A kind of surface treatment method of coating aluminium coiled material and the preparation method of coating aluminium coiled material |
| CN110280616A (en) * | 2019-04-18 | 2019-09-27 | 嘉兴亿豪新材料有限公司 | A kind of aluminium volume treatment process |
| CN110280616B (en) * | 2019-04-18 | 2021-02-05 | 邹平宏发铝业科技有限公司 | Aluminum coil treatment process |
| CN115846174A (en) * | 2022-11-30 | 2023-03-28 | 广东合拓新材料科技有限公司 | Preparation process of high-strength multilayer composite aluminum veneer |
| CN116174275A (en) * | 2023-03-10 | 2023-05-30 | 广西博思格科技发展有限公司 | Primer coating treatment process for color aluminum coil production |
| CN116174275B (en) * | 2023-03-10 | 2023-12-08 | 广西博思格科技发展有限公司 | Primer coating treatment process for color aluminum coil production |
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Application publication date: 20180323 |
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